Equipment for facsimile call service of telephone exchange

Abstract

An equipment for facsimile call service of a telephone exchange which can apply an unique charging system to a facsimile call by distinguishing the facsimile call from ordinary speech calls, notify a caller of cause when occurring a failure in transmitting the facsimile call, and advise the caller on the way to eliminate the cause.

What is claimed is: 
     
       1. An equipment for facsimile call service of a telephone exchange, comprising: a means for identifying a signaling tone on a speech path as a data tone, the speech path having a plurality of calls, then checking the signaling tone against a known facsimile transmission procedure, and identifying a facsimile call out of the calls on the speech path;   a data base for storing a charging list unique to the facsimile call which differs from a telephone charging list; and   a means for calculating a sum of charges from the facsimile charging list based upon time required for the corresponding facsimile communication.   
     
     
       2. An equipment according to claim 1, further comprising a means for searching whether each caller is previously registered so that on a registered caller can be charged by calculating a calling charge from the facsimile charging list. 
     
     
       3. An equipment for facsimile call service of a telephone exchange, comprising: a means for identifying a signaling tone on a speech path as a data tone, then checking the signaling tone against a known facsimile transmission procedure, and identifying a facsimile call out of all calls on the speech path;   a data base for storing a charging list unique to the facsimile call for each page that has succeeded in facsimile transmission;   means for counting a number of pages that have succeeded in facsimile transmissions; and   a means for calculating a sum of charges from the facsimile charging list for each page that has succeeded in facsimile transmission based upon the number of pages that the facsimile transmission has finished successfully.   
     
     
       4. An equipment according to claim 3, further comprising a means for searching whether each caller is previously registered so that only a registered caller can be charged by calculating a calling charge from the facsimile charging list for each page that has succeed in facsimile transmission. 
     
     
       5. An equipment for facsimile call service of a telephone exchange, comprising: means for identifying a signaling tone on a speech path as a data tone, then checking the signaling tone against a known facsimile transmission procedure, and identifying a facsimile call out of all calls on the speech path as the result;   a data base for storing a telephone charging list;   a means for measuring time required for pages that have succeeded in facsimile transmission; and   a means for calculating a sum of charges from the telephone charging list based upon the time required for pages that have succeeded in facsimile transmission.   
     
     
       6. An equipment according to claim 5, further comprising a means for searching whether each caller is previously registered so that only a registered caller can be charged by calculating a calling charge from the telephone charging list.